Let's imagine / record the width and color of 47 different leaves that fell on my lawn. I was able to identify the species of 23 leaves. What are the sample sizes for each variable:
width
N=
color
NE
species
NE

This is a time line from 685 to 978

Ibelieve the answer is a-broad because that is a leafed plant.

Many archeologists and anthropologists disagree with dr. thorne's view.  thorne strongly believes that what many calls "homo erectus"  was in fact  homo sapiens,  and that they migrated out of africa almost 2 million years ago and dispersed throughout europe and asia. that's way different  from what scientists have always believed about the evolution of the species.